The BBC's Catherine Marston"The blast was felt across a wide area" real 56kAlan Fry, head of the Anti-Terrorist Branch"A small missile was fired..." real 56kFormer British Commander, Col Robin Evelegh"The Government has thrown away its negotiating position" real 56kAnti-terrorist expert Peter Power"The balance of probabilities is we are now looking at a republican attack" real 28k